Home / 43,817.90-65,729.34-12,228.03

Finding the Fourth Proportional to 43,817.90, 65,729.34 and 12,228.03

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Solution

The fourth proportional to 43,817.90, 65,729.34 and 12,228.03 is: 18,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,817.90 : 65,729.34 = 12,228.03 : x
  2. Step 2: Convert to fraction form
    43,817.90/65,729.34 = 12,228.03/x
  3. Step 3: Cross multiply
    43,817.90x = 65,729.34 × 12,228.03
  4. Step 4: Simplify right side
    43,817.90x = 803,740,341.40
  5. Step 5: Solve for x
    x = 803,740,341.40/43,817.90
  6. Step 6: Final answer
    x = 18,342.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.